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/* eslint-disable max-classes-per-file */
/* global AggregateError */
import Translator from '@uppy/utils/lib/Translator'
import ee from 'namespace-emitter'
import { nanoid } from 'nanoid/non-secure'
import throttle from 'lodash.throttle'
import DefaultStore from '@uppy/store-default'
import getFileType from '@uppy/utils/lib/getFileType'
import getFileNameAndExtension from '@uppy/utils/lib/getFileNameAndExtension'
import generateFileID from '@uppy/utils/lib/generateFileID'
import supportsUploadProgress from './supportsUploadProgress.js'
import getFileName from './getFileName.js'
import { justErrorsLogger, debugLogger } from './loggers.js'
import {
Restricter,
defaultOptions as defaultRestrictionOptions,
RestrictionError,
} from './Restricter.js'
import packageJson from '../package.json'
import locale from './locale.js'
/**
* Uppy Core module.
* Manages plugins, state updates, acts as an event bus,
* adds/removes files and metadata.
*/
class Uppy {
static VERSION = packageJson.version
/** @type {Record<string, BasePlugin[]>} */
#plugins = Object.create(null)
#restricter
#storeUnsubscribe
#emitter = ee()
#preProcessors = new Set()
#uploaders = new Set()
#postProcessors = new Set()
/**
* Instantiate Uppy
*
* @param {object} opts — Uppy options
*/
constructor (opts) {
this.defaultLocale = locale
const defaultOptions = {
id: 'uppy',
autoProceed: false,
/**
* @deprecated The method should not be used
*/
allowMultipleUploads: true,
allowMultipleUploadBatches: true,
debug: false,
restrictions: defaultRestrictionOptions,
meta: {},
onBeforeFileAdded: (currentFile) => currentFile,
onBeforeUpload: (files) => files,
store: DefaultStore(),
logger: justErrorsLogger,
infoTimeout: 5000,
}
// Merge default options with the ones set by user,
// making sure to merge restrictions too
this.opts = {
...defaultOptions,
...opts,
restrictions: {
...defaultOptions.restrictions,
...(opts && opts.restrictions),
},
}
// Support debug: true for backwards-compatability, unless logger is set in opts
// opts instead of this.opts to avoid comparing objects — we set logger: justErrorsLogger in defaultOptions
if (opts && opts.logger && opts.debug) {
this.log('You are using a custom `logger`, but also set `debug: true`, which uses built-in logger to output logs to console. Ignoring `debug: true` and using your custom `logger`.', 'warning')
} else if (opts && opts.debug) {
this.opts.logger = debugLogger
}
this.log(`Using Core v${this.constructor.VERSION}`)
this.i18nInit()
// ___Why throttle at 500ms?
// - We must throttle at >250ms for superfocus in Dashboard to work well
// (because animation takes 0.25s, and we want to wait for all animations to be over before refocusing).
// [Practical Check]: if thottle is at 100ms, then if you are uploading a file,
// and click 'ADD MORE FILES', - focus won't activate in Firefox.
// - We must throttle at around >500ms to avoid performance lags.
// [Practical Check] Firefox, try to upload a big file for a prolonged period of time. Laptop will start to heat up.
this.calculateProgress = throttle(this.calculateProgress.bind(this), 500, { leading: true, trailing: true })
this.store = this.opts.store
this.setState({
plugins: {},
files: {},
currentUploads: {},
allowNewUpload: true,
capabilities: {
uploadProgress: supportsUploadProgress(),
individualCancellation: true,
resumableUploads: false,
},
totalProgress: 0,
meta: { ...this.opts.meta },
info: [],
recoveredState: null,
})
this.#restricter = new Restricter(() => this.opts, this.i18n)
this.#storeUnsubscribe = this.store.subscribe((prevState, nextState, patch) => {
this.emit('state-update', prevState, nextState, patch)
this.updateAll(nextState)
})
// Exposing uppy object on window for debugging and testing
if (this.opts.debug && typeof window !== 'undefined') {
window[this.opts.id] = this
}
this.#addListeners()
}
emit (event, ...args) {
this.#emitter.emit(event, ...args)
}
on (event, callback) {
this.#emitter.on(event, callback)
return this
}
once (event, callback) {
this.#emitter.once(event, callback)
return this
}
off (event, callback) {
this.#emitter.off(event, callback)
return this
}
/**
* Iterate on all plugins and run `update` on them.
* Called each time state changes.
*
*/
updateAll (state) {
this.iteratePlugins(plugin => {
plugin.update(state)
})
}
/**
* Updates state with a patch
*
* @param {object} patch {foo: 'bar'}
*/
setState (patch) {
this.store.setState(patch)
}
/**
* Returns current state.
*
* @returns {object}
*/
getState () {
return this.store.getState()
}
/**
* Back compat for when uppy.state is used instead of uppy.getState().
*
* @deprecated
*/
get state () {
// Here, state is a non-enumerable property.
return this.getState()
}
/**
* Shorthand to set state for a specific file.
*/
setFileState (fileID, state) {
if (!this.getState().files[fileID]) {
throw new Error(`Can’t set state for ${fileID} (the file could have been removed)`)
}
this.setState({
files: { ...this.getState().files, [fileID]: { ...this.getState().files[fileID], ...state } },
})
}
i18nInit () {
const translator = new Translator([this.defaultLocale, this.opts.locale])
this.i18n = translator.translate.bind(translator)
this.i18nArray = translator.translateArray.bind(translator)
this.locale = translator.locale
}
setOptions (newOpts) {
this.opts = {
...this.opts,
...newOpts,
restrictions: {
...this.opts.restrictions,
...(newOpts && newOpts.restrictions),
},
}
if (newOpts.meta) {
this.setMeta(newOpts.meta)
}
this.i18nInit()
if (newOpts.locale) {
this.iteratePlugins((plugin) => {
plugin.setOptions()
})
}
// Note: this is not the preact `setState`, it's an internal function that has the same name.
this.setState() // so that UI re-renders with new options
}
resetProgress () {
const defaultProgress = {
percentage: 0,
bytesUploaded: 0,
uploadComplete: false,
uploadStarted: null,
}
const files = { ...this.getState().files }
const updatedFiles = {}
Object.keys(files).forEach(fileID => {
const updatedFile = { ...files[fileID] }
updatedFile.progress = { ...updatedFile.progress, ...defaultProgress }
updatedFiles[fileID] = updatedFile
})
this.setState({
files: updatedFiles,
totalProgress: 0,
})
this.emit('reset-progress')
}
addPreProcessor (fn) {
this.#preProcessors.add(fn)
}
removePreProcessor (fn) {
return this.#preProcessors.delete(fn)
}
addPostProcessor (fn) {
this.#postProcessors.add(fn)
}
removePostProcessor (fn) {
return this.#postProcessors.delete(fn)
}
addUploader (fn) {
this.#uploaders.add(fn)
}
removeUploader (fn) {
return this.#uploaders.delete(fn)
}
setMeta (data) {
const updatedMeta = { ...this.getState().meta, ...data }
const updatedFiles = { ...this.getState().files }
Object.keys(updatedFiles).forEach((fileID) => {
updatedFiles[fileID] = { ...updatedFiles[fileID], meta: { ...updatedFiles[fileID].meta, ...data } }
})
this.log('Adding metadata:')
this.log(data)
this.setState({
meta: updatedMeta,
files: updatedFiles,
})
}
setFileMeta (fileID, data) {
const updatedFiles = { ...this.getState().files }
if (!updatedFiles[fileID]) {
this.log('Was trying to set metadata for a file that has been removed: ', fileID)
return
}
const newMeta = { ...updatedFiles[fileID].meta, ...data }
updatedFiles[fileID] = { ...updatedFiles[fileID], meta: newMeta }
this.setState({ files: updatedFiles })
}
/**
* Get a file object.
*
* @param {string} fileID The ID of the file object to return.
*/
getFile (fileID) {
return this.getState().files[fileID]
}
/**
* Get all files in an array.
*/
getFiles () {
const { files } = this.getState()
return Object.values(files)
}
getObjectOfFilesPerState () {
const { files: filesObject, totalProgress, error } = this.getState()
const files = Object.values(filesObject)
const inProgressFiles = files.filter(({ progress }) => !progress.uploadComplete && progress.uploadStarted)
const newFiles = files.filter((file) => !file.progress.uploadStarted)
const startedFiles = files.filter(
file => file.progress.uploadStarted || file.progress.preprocess || file.progress.postprocess,
)
const uploadStartedFiles = files.filter((file) => file.progress.uploadStarted)
const pausedFiles = files.filter((file) => file.isPaused)
const completeFiles = files.filter((file) => file.progress.uploadComplete)
const erroredFiles = files.filter((file) => file.error)
const inProgressNotPausedFiles = inProgressFiles.filter((file) => !file.isPaused)
const processingFiles = files.filter((file) => file.progress.preprocess || file.progress.postprocess)
return {
newFiles,
startedFiles,
uploadStartedFiles,
pausedFiles,
completeFiles,
erroredFiles,
inProgressFiles,
inProgressNotPausedFiles,
processingFiles,
isUploadStarted: uploadStartedFiles.length > 0,
isAllComplete: totalProgress === 100
&& completeFiles.length === files.length
&& processingFiles.length === 0,
isAllErrored: !!error && erroredFiles.length === files.length,
isAllPaused: inProgressFiles.length !== 0 && pausedFiles.length === inProgressFiles.length,
isUploadInProgress: inProgressFiles.length > 0,
isSomeGhost: files.some(file => file.isGhost),
}
}
/*
* @constructs
* @param { Error } error
* @param { undefined } file
*/
/*
* @constructs
* @param { RestrictionError } error
* @param { UppyFile | undefined } file
*/
#informAndEmit (error, file) {
const { message, details = '' } = error
if (error.isRestriction) {
this.emit('restriction-failed', file, error)
} else {
this.emit('error', error)
}
this.info({ message, details }, 'error', this.opts.infoTimeout)
this.log(`${message} ${details}`.trim(), 'error')
}
validateRestrictions (file, files = this.getFiles()) {
// TODO: directly return the Restriction error in next major version.
// we create RestrictionError's just to discard immediately, which doesn't make sense.
try {
this.#restricter.validate(file, files)
return { result: true }
} catch (err) {
return { result: false, reason: err.message }
}
}
#checkRequiredMetaFieldsOnFile (file) {
const { missingFields, error } = this.#restricter.getMissingRequiredMetaFields(file)
if (missingFields.length > 0) {
this.setFileState(file.id, { missingRequiredMetaFields: missingFields })
this.log(error.message)
this.emit('restriction-failed', file, error)
return false
}
return true
}
#checkRequiredMetaFields (files) {
let success = true
for (const file of Object.values(files)) {
if (!this.#checkRequiredMetaFieldsOnFile(file)) {
success = false
}
}
return success
}
#assertNewUploadAllowed (file) {
const { allowNewUpload } = this.getState()
if (allowNewUpload === false) {
const error = new RestrictionError(this.i18n('noMoreFilesAllowed'))
this.#informAndEmit(error, file)
throw error
}
}
checkIfFileAlreadyExists (fileID) {
const { files } = this.getState()
if (files[fileID] && !files[fileID].isGhost) {
return true
}
return false
}
/**
* Create a file state object based on user-provided `addFile()` options.
*
* Note this is extremely side-effectful and should only be done when a file state object
* will be added to state immediately afterward!
*
* The `files` value is passed in because it may be updated by the caller without updating the store.
*/
#checkAndCreateFileStateObject (files, fileDescriptor) {
const fileType = getFileType(fileDescriptor)
const fileName = getFileName(fileType, fileDescriptor)
const fileExtension = getFileNameAndExtension(fileName).extension
const isRemote = Boolean(fileDescriptor.isRemote)
const fileID = generateFileID({
...fileDescriptor,
type: fileType,
})
if (this.checkIfFileAlreadyExists(fileID)) {
const error = new RestrictionError(this.i18n('noDuplicates', { fileName }))
this.#informAndEmit(error, fileDescriptor)
throw error
}
const meta = fileDescriptor.meta || {}
meta.name = fileName
meta.type = fileType
// `null` means the size is unknown.
const size = Number.isFinite(fileDescriptor.data.size) ? fileDescriptor.data.size : null
let newFile = {
source: fileDescriptor.source || '',
id: fileID,
name: fileName,
extension: fileExtension || '',
meta: {
...this.getState().meta,
...meta,
},
type: fileType,
data: fileDescriptor.data,
progress: {
percentage: 0,
bytesUploaded: 0,
bytesTotal: size,
uploadComplete: false,
uploadStarted: null,
},
size,
isRemote,
remote: fileDescriptor.remote || '',
preview: fileDescriptor.preview,
}
const onBeforeFileAddedResult = this.opts.onBeforeFileAdded(newFile, files)
if (onBeforeFileAddedResult === false) {
// Don’t show UI info for this error, as it should be done by the developer
const error = new RestrictionError('Cannot add the file because onBeforeFileAdded returned false.')
this.emit('restriction-failed', fileDescriptor, error)
throw error
} else if (typeof onBeforeFileAddedResult === 'object' && onBeforeFileAddedResult !== null) {
newFile = onBeforeFileAddedResult
}
try {
const filesArray = Object.keys(files).map(i => files[i])
this.#restricter.validate(newFile, filesArray)
} catch (err) {
this.#informAndEmit(err, newFile)
throw err
}
return newFile
}
// Schedule an upload if `autoProceed` is enabled.
#startIfAutoProceed () {
if (this.opts.autoProceed && !this.scheduledAutoProceed) {
this.scheduledAutoProceed = setTimeout(() => {
this.scheduledAutoProceed = null
this.upload().catch((err) => {
if (!err.isRestriction) {
this.log(err.stack || err.message || err)
}
})
}, 4)
}
}
/**
* Add a new file to `state.files`. This will run `onBeforeFileAdded`,
* try to guess file type in a clever way, check file against restrictions,
* and start an upload if `autoProceed === true`.
*
* @param {object} file object to add
* @returns {string} id for the added file
*/
addFile (file) {
this.#assertNewUploadAllowed(file)
const { files } = this.getState()
let newFile = this.#checkAndCreateFileStateObject(files, file)
// Users are asked to re-select recovered files without data,
// and to keep the progress, meta and everthing else, we only replace said data
if (files[newFile.id] && files[newFile.id].isGhost) {
newFile = {
...files[newFile.id],
data: file.data,
isGhost: false,
}
this.log(`Replaced the blob in the restored ghost file: ${newFile.name}, ${newFile.id}`)
}
this.setState({
files: {
...files,
[newFile.id]: newFile,
},
})
this.emit('file-added', newFile)
this.emit('files-added', [newFile])
this.log(`Added file: ${newFile.name}, ${newFile.id}, mime type: ${newFile.type}`)
this.#startIfAutoProceed()
return newFile.id
}
/**
* Add multiple files to `state.files`. See the `addFile()` documentation.
*
* If an error occurs while adding a file, it is logged and the user is notified.
* This is good for UI plugins, but not for programmatic use.
* Programmatic users should usually still use `addFile()` on individual files.
*/
addFiles (fileDescriptors) {
this.#assertNewUploadAllowed()
// create a copy of the files object only once
const files = { ...this.getState().files }
const newFiles = []
const errors = []
for (let i = 0; i < fileDescriptors.length; i++) {
try {
let newFile = this.#checkAndCreateFileStateObject(files, fileDescriptors[i])
// Users are asked to re-select recovered files without data,
// and to keep the progress, meta and everthing else, we only replace said data
if (files[newFile.id] && files[newFile.id].isGhost) {
newFile = {
...files[newFile.id],
data: fileDescriptors[i].data,
isGhost: false,
}
this.log(`Replaced blob in a ghost file: ${newFile.name}, ${newFile.id}`)
}
files[newFile.id] = newFile
newFiles.push(newFile)
} catch (err) {
if (!err.isRestriction) {
errors.push(err)
}
}
}
this.setState({ files })
newFiles.forEach((newFile) => {
this.emit('file-added', newFile)
})
this.emit('files-added', newFiles)
if (newFiles.length > 5) {
this.log(`Added batch of ${newFiles.length} files`)
} else {
Object.keys(newFiles).forEach(fileID => {
this.log(`Added file: ${newFiles[fileID].name}\n id: ${newFiles[fileID].id}\n type: ${newFiles[fileID].type}`)
})
}
if (newFiles.length > 0) {
this.#startIfAutoProceed()
}
if (errors.length > 0) {
let message = 'Multiple errors occurred while adding files:\n'
errors.forEach((subError) => {
message += `\n * ${subError.message}`
})
this.info({
message: this.i18n('addBulkFilesFailed', { smart_count: errors.length }),
details: message,
}, 'error', this.opts.infoTimeout)
if (typeof AggregateError === 'function') {
throw new AggregateError(errors, message)
} else {
const err = new Error(message)
err.errors = errors
throw err
}
}
}
removeFiles (fileIDs, reason) {
const { files, currentUploads } = this.getState()
const updatedFiles = { ...files }
const updatedUploads = { ...currentUploads }
const removedFiles = Object.create(null)
fileIDs.forEach((fileID) => {
if (files[fileID]) {
removedFiles[fileID] = files[fileID]
delete updatedFiles[fileID]
}
})
// Remove files from the `fileIDs` list in each upload.
function fileIsNotRemoved (uploadFileID) {
return removedFiles[uploadFileID] === undefined
}
Object.keys(updatedUploads).forEach((uploadID) => {
const newFileIDs = currentUploads[uploadID].fileIDs.filter(fileIsNotRemoved)
// Remove the upload if no files are associated with it anymore.
if (newFileIDs.length === 0) {
delete updatedUploads[uploadID]
return
}
const { capabilities } = this.getState()
if (newFileIDs.length !== currentUploads[uploadID].fileIDs.length
&& !capabilities.individualCancellation) {
throw new Error('individualCancellation is disabled')
}
updatedUploads[uploadID] = {
...currentUploads[uploadID],
fileIDs: newFileIDs,
}
})
const stateUpdate = {
currentUploads: updatedUploads,
files: updatedFiles,
}
// If all files were removed - allow new uploads,
// and clear recoveredState
if (Object.keys(updatedFiles).length === 0) {
stateUpdate.allowNewUpload = true
stateUpdate.error = null
stateUpdate.recoveredState = null
}
this.setState(stateUpdate)
this.calculateTotalProgress()
const removedFileIDs = Object.keys(removedFiles)
removedFileIDs.forEach((fileID) => {
this.emit('file-removed', removedFiles[fileID], reason)
})
if (removedFileIDs.length > 5) {
this.log(`Removed ${removedFileIDs.length} files`)
} else {
this.log(`Removed files: ${removedFileIDs.join(', ')}`)
}
}
removeFile (fileID, reason = null) {
this.removeFiles([fileID], reason)
}
pauseResume (fileID) {
if (!this.getState().capabilities.resumableUploads
|| this.getFile(fileID).uploadComplete) {
return undefined
}
const wasPaused = this.getFile(fileID).isPaused || false
const isPaused = !wasPaused
this.setFileState(fileID, {
isPaused,
})
this.emit('upload-pause', fileID, isPaused)
return isPaused
}
pauseAll () {
const updatedFiles = { ...this.getState().files }
const inProgressUpdatedFiles = Object.keys(updatedFiles).filter((file) => {
return !updatedFiles[file].progress.uploadComplete
&& updatedFiles[file].progress.uploadStarted
})
inProgressUpdatedFiles.forEach((file) => {
const updatedFile = { ...updatedFiles[file], isPaused: true }
updatedFiles[file] = updatedFile
})
this.setState({ files: updatedFiles })
this.emit('pause-all')
}
resumeAll () {
const updatedFiles = { ...this.getState().files }
const inProgressUpdatedFiles = Object.keys(updatedFiles).filter((file) => {
return !updatedFiles[file].progress.uploadComplete
&& updatedFiles[file].progress.uploadStarted
})
inProgressUpdatedFiles.forEach((file) => {
const updatedFile = {
...updatedFiles[file],
isPaused: false,
error: null,
}
updatedFiles[file] = updatedFile
})
this.setState({ files: updatedFiles })
this.emit('resume-all')
}
retryAll () {
const updatedFiles = { ...this.getState().files }
const filesToRetry = Object.keys(updatedFiles).filter(file => {
return updatedFiles[file].error
})
filesToRetry.forEach((file) => {
const updatedFile = {
...updatedFiles[file],
isPaused: false,
error: null,
}
updatedFiles[file] = updatedFile
})
this.setState({
files: updatedFiles,
error: null,
})
this.emit('retry-all', filesToRetry)
if (filesToRetry.length === 0) {
return Promise.resolve({
successful: [],
failed: [],
})
}
const uploadID = this.#createUpload(filesToRetry, {
forceAllowNewUpload: true, // create new upload even if allowNewUpload: false
})
return this.#runUpload(uploadID)
}
cancelAll ({ reason = 'user' } = {}) {
this.emit('cancel-all', { reason })
// Only remove existing uploads if user is canceling
if (reason === 'user') {
const { files } = this.getState()
const fileIDs = Object.keys(files)
if (fileIDs.length) {
this.removeFiles(fileIDs, 'cancel-all')
}
this.setState({
totalProgress: 0,
error: null,
recoveredState: null,
})
}
}
retryUpload (fileID) {
this.setFileState(fileID, {
error: null,
isPaused: false,
})
this.emit('upload-retry', fileID)
const uploadID = this.#createUpload([fileID], {
forceAllowNewUpload: true, // create new upload even if allowNewUpload: false
})
return this.#runUpload(uploadID)
}
// todo remove in next major. what is the point of the reset method when we have cancelAll or vice versa?
reset (...args) {
this.cancelAll(...args)
}
logout () {
this.iteratePlugins(plugin => {
if (plugin.provider && plugin.provider.logout) {
plugin.provider.logout()
}
})
}
calculateProgress (file, data) {
if (file == null || !this.getFile(file.id)) {
this.log(`Not setting progress for a file that has been removed: ${file?.id}`)
return
}
// bytesTotal may be null or zero; in that case we can't divide by it
const canHavePercentage = Number.isFinite(data.bytesTotal) && data.bytesTotal > 0
this.setFileState(file.id, {
progress: {
...this.getFile(file.id).progress,
bytesUploaded: data.bytesUploaded,
bytesTotal: data.bytesTotal,
percentage: canHavePercentage
? Math.round((data.bytesUploaded / data.bytesTotal) * 100)
: 0,
},
})
this.calculateTotalProgress()
}
calculateTotalProgress () {
// calculate total progress, using the number of files currently uploading,
// multiplied by 100 and the summ of individual progress of each file
const files = this.getFiles()
const inProgress = files.filter((file) => {
return file.progress.uploadStarted
|| file.progress.preprocess
|| file.progress.postprocess
})
if (inProgress.length === 0) {
this.emit('progress', 0)
this.setState({ totalProgress: 0 })
return
}
const sizedFiles = inProgress.filter((file) => file.progress.bytesTotal != null)
const unsizedFiles = inProgress.filter((file) => file.progress.bytesTotal == null)
if (sizedFiles.length === 0) {
const progressMax = inProgress.length * 100
const currentProgress = unsizedFiles.reduce((acc, file) => {
return acc + file.progress.percentage
}, 0)
const totalProgress = Math.round((currentProgress / progressMax) * 100)
this.setState({ totalProgress })
return
}
let totalSize = sizedFiles.reduce((acc, file) => {
return acc + file.progress.bytesTotal
}, 0)
const averageSize = totalSize / sizedFiles.length
totalSize += averageSize * unsizedFiles.length
let uploadedSize = 0
sizedFiles.forEach((file) => {
uploadedSize += file.progress.bytesUploaded
})
unsizedFiles.forEach((file) => {
uploadedSize += (averageSize * (file.progress.percentage || 0)) / 100
})
let totalProgress = totalSize === 0
? 0
: Math.round((uploadedSize / totalSize) * 100)
// hot fix, because:
// uploadedSize ended up larger than totalSize, resulting in 1325% total
if (totalProgress > 100) {
totalProgress = 100
}
this.setState({ totalProgress })
this.emit('progress', totalProgress)
}
/**
* Registers listeners for all global actions, like:
* `error`, `file-removed`, `upload-progress`
*/
#addListeners () {
/**
* @param {Error} error
* @param {object} [file]
* @param {object} [response]
*/
const errorHandler = (error, file, response) => {
let errorMsg = error.message || 'Unknown error'
if (error.details) {
errorMsg += ` ${error.details}`
}
this.setState({ error: errorMsg })
if (file != null && file.id in this.getState().files) {
this.setFileState(file.id, {
error: errorMsg,
response,
})
}
}
this.on('error', errorHandler)
this.on('upload-error', (file, error, response) => {
errorHandler(error, file, response)
if (typeof error === 'object' && error.message) {
const newError = new Error(error.message)
newError.details = error.message
if (error.details) {
newError.details += ` ${error.details}`
}
newError.message = this.i18n('failedToUpload', { file: file?.name })
this.#informAndEmit(newError)
} else {
this.#informAndEmit(error)
}
})
this.on('upload', () => {
this.setState({ error: null })
})
this.on('upload-started', (file) => {
if (file == null || !this.getFile(file.id)) {
this.log(`Not setting progress for a file that has been removed: ${file?.id}`)
return
}
this.setFileState(file.id, {
progress: {
uploadStarted: Date.now(),
uploadComplete: false,
percentage: 0,
bytesUploaded: 0,
bytesTotal: file.size,
},
})
})
this.on('upload-progress', this.calculateProgress)
this.on('upload-success', (file, uploadResp) => {
if (file == null || !this.getFile(file.id)) {
this.log(`Not setting progress for a file that has been removed: ${file?.id}`)
return
}
const currentProgress = this.getFile(file.id).progress
this.setFileState(file.id, {
progress: {
...currentProgress,
postprocess: this.#postProcessors.size > 0 ? {
mode: 'indeterminate',
} : null,
uploadComplete: true,
percentage: 100,
bytesUploaded: currentProgress.bytesTotal,
},
response: uploadResp,
uploadURL: uploadResp.uploadURL,
isPaused: false,
})
// Remote providers sometimes don't tell us the file size,
// but we can know how many bytes we uploaded once the upload is complete.
if (file.size == null) {
this.setFileState(file.id, {
size: uploadResp.bytesUploaded || currentProgress.bytesTotal,
})
}
this.calculateTotalProgress()
})
this.on('preprocess-progress', (file, progress) => {
if (file == null || !this.getFile(file.id)) {
this.log(`Not setting progress for a file that has been removed: ${file?.id}`)
return
}
this.setFileState(file.id, {
progress: { ...this.getFile(file.id).progress, preprocess: progress },
})
})
this.on('preprocess-complete', (file) => {
if (file == null || !this.getFile(file.id)) {
this.log(`Not setting progress for a file that has been removed: ${file?.id}`)
return
}
const files = { ...this.getState().files }
files[file.id] = { ...files[file.id], progress: { ...files[file.id].progress } }
delete files[file.id].progress.preprocess
this.setState({ files })
})
this.on('postprocess-progress', (file, progress) => {
if (file == null || !this.getFile(file.id)) {
this.log(`Not setting progress for a file that has been removed: ${file?.id}`)
return
}
this.setFileState(file.id, {
progress: { ...this.getState().files[file.id].progress, postprocess: progress },
})
})
this.on('postprocess-complete', (file) => {
if (file == null || !this.getFile(file.id)) {
this.log(`Not setting progress for a file that has been removed: ${file?.id}`)
return
}
const files = {
...this.getState().files,
}
files[file.id] = {
...files[file.id],
progress: {
...files[file.id].progress,
},
}
delete files[file.id].progress.postprocess
this.setState({ files })
})
this.on('restored', () => {
// Files may have changed--ensure progress is still accurate.
this.calculateTotalProgress()
})
this.on('dashboard:file-edit-complete', (file) => {
if (file) {
this.#checkRequiredMetaFieldsOnFile(file)
}
})
// show informer if offline
if (typeof window !== 'undefined' && window.addEventListener) {
window.addEventListener('online', this.#updateOnlineStatus)
window.addEventListener('offline', this.#updateOnlineStatus)
setTimeout(this.#updateOnlineStatus, 3000)
}
}
updateOnlineStatus () {
const online = typeof window.navigator.onLine !== 'undefined'
? window.navigator.onLine
: true
if (!online) {
this.emit('is-offline')
this.info(this.i18n('noInternetConnection'), 'error', 0)
this.wasOffline = true
} else {
this.emit('is-online')
if (this.wasOffline) {
this.emit('back-online')
this.info(this.i18n('connectedToInternet'), 'success', 3000)
this.wasOffline = false
}
}
}
#updateOnlineStatus = this.updateOnlineStatus.bind(this)
getID () {
return this.opts.id
}
/**
* Registers a plugin with Core.
*
* @param {object} Plugin object
* @param {object} [opts] object with options to be passed to Plugin
* @returns {object} self for chaining
*/
// eslint-disable-next-line no-shadow
use (Plugin, opts) {
if (typeof Plugin !== 'function') {
const msg = `Expected a plugin class, but got ${Plugin === null ? 'null' : typeof Plugin}.`
+ ' Please verify that the plugin was imported and spelled correctly.'
throw new TypeError(msg)
}
// Instantiate
const plugin = new Plugin(this, opts)
const pluginId = plugin.id
if (!pluginId) {
throw new Error('Your plugin must have an id')
}
if (!plugin.type) {
throw new Error('Your plugin must have a type')
}
const existsPluginAlready = this.getPlugin(pluginId)
if (existsPluginAlready) {
const msg = `Already found a plugin named '${existsPluginAlready.id}'. `
+ `Tried to use: '${pluginId}'.\n`
+ 'Uppy plugins must have unique `id` options. See https://uppy.io/docs/plugins/#id.'
throw new Error(msg)
}
if (Plugin.VERSION) {
this.log(`Using ${pluginId} v${Plugin.VERSION}`)
}
if (plugin.type in this.#plugins) {
this.#plugins[plugin.type].push(plugin)
} else {
this.#plugins[plugin.type] = [plugin]
}
plugin.install()
return this
}
/**
* Find one Plugin by name.
*
* @param {string} id plugin id
* @returns {BasePlugin|undefined}
*/
getPlugin (id) {
for (const plugins of Object.values(this.#plugins)) {
const foundPlugin = plugins.find(plugin => plugin.id === id)
if (foundPlugin != null) return foundPlugin
}
return undefined
}
[Symbol.for('uppy test: getPlugins')] (type) {
return this.#plugins[type]
}
/**
* Iterate through all `use`d plugins.
*
* @param {Function} method that will be run on each plugin
*/
iteratePlugins (method) {
Object.values(this.#plugins).flat(1).forEach(method)
}
/**
* Uninstall and remove a plugin.
*
* @param {object} instance The plugin instance to remove.
*/
removePlugin (instance) {
this.log(`Removing plugin ${instance.id}`)
this.emit('plugin-remove', instance)
if (instance.uninstall) {
instance.uninstall()
}
const list = this.#plugins[instance.type]
// list.indexOf failed here, because Vue3 converted the plugin instance
// to a Proxy object, which failed the strict comparison test:
// obj !== objProxy
const index = list.findIndex(item => item.id === instance.id)
if (index !== -1) {
list.splice(index, 1)
}
const state = this.getState()
const updatedState = {
plugins: {
...state.plugins,
[instance.id]: undefined,
},
}
this.setState(updatedState)
}
/**
* Uninstall all plugins and close down this Uppy instance.
*/
close ({ reason } = {}) {
this.log(`Closing Uppy instance ${this.opts.id}: removing all files and uninstalling plugins`)
this.cancelAll({ reason })
this.#storeUnsubscribe()
this.iteratePlugins((plugin) => {
this.removePlugin(plugin)
})
if (typeof window !== 'undefined' && window.removeEventListener) {
window.removeEventListener('online', this.#updateOnlineStatus)
window.removeEventListener('offline', this.#updateOnlineStatus)
}
}
hideInfo () {
const { info } = this.getState()
this.setState({ info: info.slice(1) })
this.emit('info-hidden')
}
/**
* Set info message in `state.info`, so that UI plugins like `Informer`
* can display the message.
*
* @param {string | object} message Message to be displayed by the informer
* @param {string} [type]
* @param {number} [duration]
*/
info (message, type = 'info', duration = 3000) {
const isComplexMessage = typeof message === 'object'
this.setState({
info: [
...this.getState().info,
{
type,
message: isComplexMessage ? message.message : message,
details: isComplexMessage ? message.details : null,
},
],
})
setTimeout(() => this.hideInfo(), duration)
this.emit('info-visible')
}
/**
* Passes messages to a function, provided in `opts.logger`.
* If `opts.logger: Uppy.debugLogger` or `opts.debug: true`, logs to the browser console.
*
* @param {string|object} message to log
* @param {string} [type] optional `error` or `warning`
*/
log (message, type) {
const { logger } = this.opts
switch (type) {
case 'error': logger.error(message); break
case 'warning': logger.warn(message); break
default: logger.debug(message); break
}
}
/**
* Restore an upload by its ID.
*/
restore (uploadID) {
this.log(`Core: attempting to restore upload "${uploadID}"`)
if (!this.getState().currentUploads[uploadID]) {
this.#removeUpload(uploadID)
return Promise.reject(new Error('Nonexistent upload'))
}
return this.#runUpload(uploadID)
}
/**
* Create an upload for a bunch of files.
*
* @param {Array<string>} fileIDs File IDs to include in this upload.
* @returns {string} ID of this upload.
*/
#createUpload (fileIDs, opts = {}) {
// uppy.retryAll sets this to true — when retrying we want to ignore `allowNewUpload: false`
const { forceAllowNewUpload = false } = opts
const { allowNewUpload, currentUploads } = this.getState()
if (!allowNewUpload && !forceAllowNewUpload) {
throw new Error('Cannot create a new upload: already uploading.')
}
const uploadID = nanoid()
this.emit('upload', {
id: uploadID,
fileIDs,
})
this.setState({
allowNewUpload: this.opts.allowMultipleUploadBatches !== false && this.opts.allowMultipleUploads !== false,
currentUploads: {
...currentUploads,
[uploadID]: {
fileIDs,
step: 0,
result: {},
},
},
})
return uploadID
}
[Symbol.for('uppy test: createUpload')] (...args) { return this.#createUpload(...args) }
#getUpload (uploadID) {
const { currentUploads } = this.getState()
return currentUploads[uploadID]
}
/**
* Add data to an upload's result object.
*
* @param {string} uploadID The ID of the upload.
* @param {object} data Data properties to add to the result object.
*/
addResultData (uploadID, data) {
if (!this.#getUpload(uploadID)) {
this.log(`Not setting result for an upload that has been removed: ${uploadID}`)
return
}
const { currentUploads } = this.getState()
const currentUpload = { ...currentUploads[uploadID], result: { ...currentUploads[uploadID].result, ...data } }
this.setState({
currentUploads: { ...currentUploads, [uploadID]: currentUpload },
})
}
/**
* Remove an upload, eg. if it has been canceled or completed.
*
* @param {string} uploadID The ID of the upload.
*/
#removeUpload (uploadID) {
const currentUploads = { ...this.getState().currentUploads }
delete currentUploads[uploadID]
this.setState({
currentUploads,
})
}
/**
* Run an upload. This picks up where it left off in case the upload is being restored.
*
* @private
*/
async #runUpload (uploadID) {
let { currentUploads } = this.getState()
let currentUpload = currentUploads[uploadID]
const restoreStep = currentUpload.step || 0
const steps = [
...this.#preProcessors,
...this.#uploaders,
...this.#postProcessors,
]
try {
for (let step = restoreStep; step < steps.length; step++) {
if (!currentUpload) {
break
}
const fn = steps[step]
const updatedUpload = {
...currentUpload,
step,
}
this.setState({
currentUploads: {
...currentUploads,
[uploadID]: updatedUpload,
},
})
// TODO give this the `updatedUpload` object as its only parameter maybe?
// Otherwise when more metadata may be added to the upload this would keep getting more parameters
await fn(updatedUpload.fileIDs, uploadID)
// Update currentUpload value in case it was modified asynchronously.
currentUploads = this.getState().currentUploads
currentUpload = currentUploads[uploadID]
}
} catch (err) {
this.#removeUpload(uploadID)
throw err
}
// Set result data.
if (currentUpload) {
// Mark postprocessing step as complete if necessary; this addresses a case where we might get
// stuck in the postprocessing UI while the upload is fully complete.
// If the postprocessing steps do not do any work, they may not emit postprocessing events at
// all, and never mark the postprocessing as complete. This is fine on its own but we
// introduced code in the @uppy/core upload-success handler to prepare postprocessing progress
// state if any postprocessors are registered. That is to avoid a "flash of completed state"
// before the postprocessing plugins can emit events.
//
// So, just in case an upload with postprocessing plugins *has* completed *without* emitting
// postprocessing completion, we do it instead.
currentUpload.fileIDs.forEach((fileID) => {
const file = this.getFile(fileID)
if (file && file.progress.postprocess) {
this.emit('postprocess-complete', file)
}
})
const files = currentUpload.fileIDs.map((fileID) => this.getFile(fileID))
const successful = files.filter((file) => !file.error)
const failed = files.filter((file) => file.error)
await this.addResultData(uploadID, { successful, failed, uploadID })
// Update currentUpload value in case it was modified asynchronously.
currentUploads = this.getState().currentUploads
currentUpload = currentUploads[uploadID]
}
// Emit completion events.
// This is in a separate function so that the `currentUploads` variable
// always refers to the latest state. In the handler right above it refers
// to an outdated object without the `.result` property.
let result
if (currentUpload) {
result = currentUpload.result
this.emit('complete', result)
this.#removeUpload(uploadID)
}
if (result == null) {
this.log(`Not setting result for an upload that has been removed: ${uploadID}`)
}
return result
}
/**
* Start an upload for all the files that are not currently being uploaded.
*
* @returns {Promise}
*/
upload () {
if (!this.#plugins.uploader?.length) {
this.log('No uploader type plugins are used', 'warning')
}
let { files } = this.getState()
const onBeforeUploadResult = this.opts.onBeforeUpload(files)
if (onBeforeUploadResult === false) {
return Promise.reject(new Error('Not starting the upload because onBeforeUpload returned false'))
}
if (onBeforeUploadResult && typeof onBeforeUploadResult === 'object') {
files = onBeforeUploadResult
// Updating files in state, because uploader plugins receive file IDs,
// and then fetch the actual file object from state
this.setState({
files,
})
}
return Promise.resolve()
.then(() => this.#restricter.validateMinNumberOfFiles(files))
.catch((err) => {
this.#informAndEmit(err)
throw err
})
.then(() => {
if (!this.#checkRequiredMetaFields(files)) {
throw new RestrictionError(this.i18n('missingRequiredMetaField'))
}
})
.catch((err) => {
// Doing this in a separate catch because we already emited and logged
// all the errors in `checkRequiredMetaFields` so we only throw a generic
// missing fields error here.
throw err
})
.then(() => {
const { currentUploads } = this.getState()
// get a list of files that are currently assigned to uploads
const currentlyUploadingFiles = Object.values(currentUploads).flatMap(curr => curr.fileIDs)
const waitingFileIDs = []
Object.keys(files).forEach((fileID) => {
const file = this.getFile(fileID)
// if the file hasn't started uploading and hasn't already been assigned to an upload..
if ((!file.progress.uploadStarted) && (currentlyUploadingFiles.indexOf(fileID) === -1)) {
waitingFileIDs.push(file.id)
}
})
const uploadID = this.#createUpload(waitingFileIDs)
return this.#runUpload(uploadID)
})
.catch((err) => {
this.emit('error', err)
this.log(err, 'error')
throw err
})
}
}
export default Uppy